{"id":{"repo_id":"unm","oai_identifier":"oai:digitalrepository.unm.edu:ece_etds-1227"},"canonical_url":"https://search.dev.ndltd.org/etd/unm/oai:digitalrepository.unm.edu:ece_etds-1227","repository":{"repo_id":"unm","name":"University of New Mexico","base_url":"https://digitalrepository.unm.edu/do/oai/"},"display":{"title":"A geodesic finite-difference time-domain model of magnetized plasma","abstract":"Electromagnetic wave propagation in the Earth-ionosphere cavity presents an interesting challenge for simulations. Three-dimensional latitude-longitude finite-difference time-domain (FDTD) models accounting for the bathymetry, topography and ionosphere have been developed and applied towards a number of applications previously. However, to date most of these models treat the ionosphere as a simple, isotropic exponential conductivity profile. Only recently has a latitude-longitude FDTD model been developed that treats the ionosphere as a magnetized cold plasma. This opens the door to modeling electromagnetic phenomena at higher frequencies and higher altitudes by accommodating more physics. Further, a geodesic (hexagonal-pentagonal) FDTD model that is more efficient, is easier to implement, and executes faster than latitude-longitude models has been recently developed. In this thesis, the magnetized cold plasma global latitude-longitude algorithm is adapted and implemented for the first time in a geodesic FDTD model of the Earth-ionosphere cavity.","abstract_html":"Electromagnetic wave propagation in the Earth-ionosphere cavity presents an interesting challenge for simulations. Three-dimensional latitude-longitude finite-difference time-domain (FDTD) models accounting for the bathymetry, topography and ionosphere have been developed and applied towards a number of applications previously. However, to date most of these models treat the ionosphere as a simple, isotropic exponential conductivity profile. Only recently has a latitude-longitude FDTD model been developed that treats the ionosphere as a magnetized cold plasma. This opens the door to modeling electromagnetic phenomena at higher frequencies and higher altitudes by accommodating more physics. Further, a geodesic (hexagonal-pentagonal) FDTD model that is more efficient, is easier to implement, and executes faster than latitude-longitude models has been recently developed. In this thesis, the magnetized cold plasma global latitude-longitude algorithm is adapted and implemented for the first time in a geodesic FDTD model of the Earth-ionosphere cavity.","abstract_has_math":false,"creators":["Schlegel, Ryan"],"institution":null,"degree_name":"Electrical Engineering","degree_level":"Thesis","degree_discipline":"Electrical and Computer Engineering","degree_department":null,"school":null,"contributors":["Simpson, Jamesina","Gilmore, Mark","Graham, Edward, Jr","Lester, Luke"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-08-27T07:00:00Z","date_published":"2012-08-27T07:00:00Z","updated_at":"2026-07-24T05:27:25Z","subjects":[],"languages":["English"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://digitalrepository.unm.edu/ece_etds/228","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Simpson, Jamesina","Gilmore, Mark","Graham, Edward, Jr","Lester, Luke"]},{"key":"dc:creator","label":"Author","values":["Schlegel, Ryan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical and Computer Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis","Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Electrical Engineering"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://digitalrepository.unm.edu/ece_etds/228"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Electromagnetic wave propagation in the Earth-ionosphere cavity presents an interesting challenge for simulations. Three-dimensional latitude-longitude finite-difference time-domain (FDTD) models accounting for the bathymetry, topography and ionosphere have been developed and applied towards a number of applications previously. However, to date most of these models treat the ionosphere as a simple, isotropic exponential conductivity profile. Only recently has a latitude-longitude FDTD model been developed that treats the ionosphere as a magnetized cold plasma. This opens the door to modeling electromagnetic phenomena at higher frequencies and higher altitudes by accommodating more physics. Further, a geodesic (hexagonal-pentagonal) FDTD model that is more efficient, is easier to implement, and executes faster than latitude-longitude models has been recently developed. In this thesis, the magnetized cold plasma global latitude-longitude algorithm is adapted and implemented for the first time in a geodesic FDTD model of the Earth-ionosphere cavity."]},{"key":"dc:title","label":"Title","values":["A geodesic finite-difference time-domain model of magnetized plasma"]}]}],"canonical_facts":{"dc:contributor":["Simpson, Jamesina","Gilmore, Mark","Graham, Edward, Jr","Lester, Luke"],"dc:creator":["Schlegel, Ryan"],"dc:description.abstract":["Electromagnetic wave propagation in the Earth-ionosphere cavity presents an interesting challenge for simulations. Three-dimensional latitude-longitude finite-difference time-domain (FDTD) models accounting for the bathymetry, topography and ionosphere have been developed and applied towards a number of applications previously. However, to date most of these models treat the ionosphere as a simple, isotropic exponential conductivity profile. Only recently has a latitude-longitude FDTD model been developed that treats the ionosphere as a magnetized cold plasma. This opens the door to modeling electromagnetic phenomena at higher frequencies and higher altitudes by accommodating more physics. Further, a geodesic (hexagonal-pentagonal) FDTD model that is more efficient, is easier to implement, and executes faster than latitude-longitude models has been recently developed. In this thesis, the magnetized cold plasma global latitude-longitude algorithm is adapted and implemented for the first time in a geodesic FDTD model of the Earth-ionosphere cavity."],"dc:identifier":["https://digitalrepository.unm.edu/ece_etds/228"],"dc:language":["English"],"dc:title":["A geodesic finite-difference time-domain model of magnetized plasma"],"thesis:degree_discipline":["Electrical and Computer Engineering"],"thesis:degree_level":["Thesis","Masters"],"thesis:degree_name":["Electrical Engineering"]},"updated_at":"2026-07-24T05:27:25Z"}